package com.lisa.auto.util;

import java.security.MessageDigest;

/**
 * @Author: liuanshun
 * @Description:
 * @Date: Create in 18:24 2018/9/18
 */
public class MD5Util {

    public static String backMD5(String inStr) {

        MessageDigest md5 = null;

        try {

            md5 = MessageDigest.getInstance("MD5");

        } catch (Exception e) {

            System.out.println(e.toString());
            e.printStackTrace();

            return "";
        }

        char[] charArray = inStr.toCharArray();
        byte[] byteArray = new byte[charArray.length];

        for (int i = 0; i < charArray.length; i++)
            byteArray[i] = (byte) charArray[i];

        byte[] md5Bytes = md5.digest(byteArray);
        StringBuffer hexValue = new StringBuffer();

        for (int i = 0; i < md5Bytes.length; i++) {

            int val = ((int) md5Bytes[i]) & 0xff;
            if (val < 16)
                hexValue.append("0");
            hexValue.append(Integer.toHexString(val));
        }

        return hexValue.toString();

    }
}
